Biology unit 4: stages of mitosis

Interphase

A period in the life of a cell between two periods of mitosis.

Spindle apparatus

A system of fibers stretching from one end of a mitotic cell to the other end.

Which statements corresponds correctly to a mutation.

A mistake in the DNA ladder. A copy error in the chromosomes.

Hormone

A chemical substance that causes some definite effect in another part of the same animal.

Factors that are known to be involved in the control of mitosis.

Cell size, presence of other cells, Chemical stimulators.

Furrowing

Cells division in animal cells in which there is a constriction in the middle of the cell.

Red blood cells.

Cells in the human body that require a high rate of mitosis.

The reproduction of DNA during interphase begins with:

Enzymes separating the DNA molecules.

Centriole

Forms the ends of the spindle fibers in the cell during mitosis.

Chromatin

Material in the cell nucleus carrying hereditary information.

The phase during mitosis when chromosomes line up in the center of the cell is

Metaphase.

The mismatch of DNA base pair during duplication can result in a ______.

Mutation.

Centromere

Part of a chromosome which attaches to the spindle apparatus during mitosis.

G1 phase

Period between the finish of mitosis and the synthesis of more genetic material.

The phase during mitosis when DNA separates into two pairs of chromosomes is:

Prophase.

Cytokinesis

The actual separation of two daughter cells during cell division.

Prophase

The first part of mitosis.

Chromatin

The genetic material appearing like a thread in a nucleus.

Nuclear envelope

The membrane that surrounds the nucleus of the cell.

G2 phase

The period between the synthesis of new genetic material and the beginning of mitosis.

S phase

The period of interphase when genetic information is being duplicated.

Telophase

The phase when the daughter chromosomes have reached opposite ends of the cell.

Metaphase

The phase when the daughter chromosomes line up across the middle of the cell.

Enzymes

The proteins required to reproduce DNA during interphase.

Anaphase

The stage of mitosis when the chromosomes move to opposite ends of the cell.

When DNA is duplicated during mitosis

Two molecules are formed, each with original "upright"

Cell plate

a structured that forms across the middle of a higher plant cell in telophase.